Add vertex preview token to canary deploy workflow

[hsubox76]

I think I broke canary when I merged vertex because I missed updating the token here (there's a total of 4 yaml workflows that need this list of tokens). There's probably a better way to do these tokens, this list is getting a little silly.

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Latest commit: 583e026

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[google-oss-bot]

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Affected Products

No changes between base commit (aa060a7) and merge commit (0f455e5).

Test Logs

• Base (aa060a7): https://github.com/firebase/firebase-js-sdk/actions/runs/9198299836
• Merge (0f455e5): https://github.com/firebase/firebase-js-sdk/actions/runs/9198665930

1. https://storage.googleapis.com/firebase-sdk-metric-reports/haOPJYKnk0.html